JP2019197981A - Content processing system, content data processing device, content management device, and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a content processing system, a content data processing apparatus, a content management apparatus, and a program capable of providing transcode data which is content data in a data format reproducible on the content management apparatus side. A content data processing device communicably connected to a content management device that manages original data that is content data before conversion and transcode data obtained by converting the original data in association with each other. Accepts the content data to be processed, transcodes the accepted content data as original data, generates transcoded data, associates the original data with the transcoded data, and sends it to the content management device. To do. [Selection diagram] Figure 1

Description

  The present invention relates to a content processing system, a content data processing device, a content management device, and a program.

  In recent years, the data formats of content such as images and music have been diversified, and the data formats that can be handled may differ depending on the device that handles the content data. In order to cope with such a situation, Japanese Patent Application Laid-Open No. 2004-151867 discloses a technique for providing a reproducible content by mirroring original content from a source device, transcoding the content.

Special table 2010-534006 gazette

  Further, in order to be able to be played back by each device, content data is once taken into a personal computer or a server device on a network, and conversion processing is performed by the personal computer or server device. In recent years, devices having an imaging function, such as smartphones, perform transcoding to convert the data format in order to ensure compatibility of content data with other devices.

  However, when such transcoding processing is implemented in a content management device that acquires and manages content data from the content data processing device, the new data format is adopted each time a new data format is adopted in the content data processing device. This is not efficient because it implements transcoding processing corresponding to various data formats.

  On the other hand, when such transcoding processing is performed by the content data processing apparatus, the content (a part) of data obtained as a result of the transcoding processing may be different every time the transcoding processing is performed. . As described above, if the data content is different every time transcoding is performed even though the data is the same content, a problem occurs in managing the content data. For example, in a content management device that receives and manages transcoded content data, whether or not the received content data is the same as content data already stored in the content management device is data after transcoding. It cannot be judged only by comparing whether or not.

  The present invention has been made in view of the above circumstances, and can provide transcoded data that is content data in a data format that can be reproduced on the content management apparatus side, and the transcoding results differ every time transcoding is performed. Content processing system, content data processing apparatus, content management apparatus, and program capable of performing management of content data without any hindrance such as determination of whether content data has already been accumulated One of its purposes is to provide it.

  The present invention that solves the problems of the above-described conventional example is connected to a content data processing device that provides content data, and is communicably connected to the content data processing device, and receives and stores content data from the content data processing device A content management system that manages the content data, the content data processing device accepting original data that is content data before conversion, and transcode data obtained by converting the original data; Means for associating and transmitting the received original data and transcoded data, and the content management device uses a common content identification for the original data and transcoded data received from the content data processing device. information Associated accumulated is obtained by the subjecting the transcoded data to the presentation processing of the content data.

  According to this aspect of the present invention, even if the process of reproducing and presenting the original data cannot be executed in the content management apparatus, transcoded data corresponding to the original data and reproducible in the content management apparatus is provided together with the original data Therefore, it is possible to perform processing for presenting content data based on the transcoded data.

  In addition, the content data processing apparatus according to one aspect of the present invention communicates with original content data that is content data before conversion and transcoding data obtained by converting the original data with a content management device that manages them in association with each other. A content data processing apparatus that can be connected to the content data processing apparatus, accepting the content data to be processed, transcoding the received content data as original data, and generating the transcoded data, and the received original Transmission means for associating data with transcoded data and transmitting the data to the content management apparatus.

  Thereby, even if the process of reproducing and presenting the original data in the content management device cannot be executed, transcode data corresponding to the original data and reproducible in the content management device is provided together with the original data. It is possible to perform processing for presenting content data based on the transcoded data.

  Further, here, the data specifying information is calculated based on the original data among the means for calculating the data specifying information by a predetermined method using the received original data as a processing target, and the original data stored in the content management apparatus. Means for determining whether or not there is original data as a basis of data specifying information that matches the data specifying information calculated based on the processing target when calculating the information; and As a result of the determination, when the predetermined data specifying information is calculated based on the original data among the original data accumulated by the content management device, it matches the data specifying information calculated based on the processing target. If there is no original data that is the basis of the data specifying information to be received, the accepted original data And data, may be transmitted in association with transcoding data.

  As a result, even if the result of transcoding differs every time transcoding is performed, it is possible to determine whether the content data is already stored, and there is no trouble in data management.

  Furthermore, the content management apparatus according to one aspect of the present invention receives original data that is content data before conversion and transcoded data obtained by converting the original data, and uses the original data and transcoded data as common content. A content management apparatus capable of managing in association with identification information, generating a related image using the received transcoded data, managing the related image in association with the content identification information, and requesting a list of related images When the related image and the content identification information managed are output to the request source and the original data acquisition request is received together with the content identification information associated with any of the related images, the request source is The origin associated with the accepted content identification information It is obtained by the fact that outputs Rudeta.

  As a result, it is possible to provide content data that can be reproduced by other devices to other devices.

  Here, predetermined content information that cannot be added to the original data associated with the received content identification information when the content data acquisition request is received together with the content identification information for specifying the content. If there is predetermined accompanying information that cannot be added to the original data associated with the received content identification information, it is transcoded data corresponding to the original data, The transcoded data to which the accompanying information can be added may be acquired, the accompanying information may be added to the acquired transcoded data, and output to the content data acquisition request source. .

  As a result, for example, it is possible to provide the information including accompanying information indicating details of processing performed on the content management apparatus side.

  Further, when the transcoding data acquisition request is accepted together with the content identification information associated with any of the related images, it is determined whether there is transcoding data associated with the accepted content identification information, If there is no transcode data, the original data associated with the received content identification information may be output to the content data acquisition request source.

  The program according to one aspect of the present invention is connected to the content management apparatus that manages the original data that is the content data before conversion and the transcode data obtained by converting the original data in association with each other. A means for receiving content data to be processed, transcoding the received content data as original data, and generating transcoded data; and the received original data and transcoded data. In association therewith, the content management apparatus functions as transmission means for transmission.

  A program according to another aspect of the present invention receives original data which is content data before conversion and transcoded data obtained by converting the original data, and uses the original data and transcoded data as common content. When a computer capable of managing in association with identification information is generated by using the received transcoded data to generate a related image and managing in association with the content identification information, and when a list of related images is requested The related image and the content identification information managed are output to the request source, and when the original data acquisition request is received together with the content identification information associated with any of the related images, The original data associated with the accepted content identification information And means for outputting the data, in which a function as an.

  According to the present invention, the content management device can generate and provide content data that can be played back by the content data processing device without transcoding content data in various data formats provided by the content data processing device. It is possible to perform processing such as reproduction of content data.

  In addition, every time transcoding is performed, even if the transcoding results are different, it is possible to determine whether or not the content data is already stored in the content management apparatus. There will be no trouble.

It is a block diagram showing the example of a structure of the content processing system which concerns on embodiment of this invention. It is a block diagram showing the example of a structure of the content management apparatus concerning embodiment of this invention. It is explanatory drawing showing the example of the accumulation | storage aspect of the content data in the content management apparatus which concerns on embodiment of this invention. It is a functional block diagram showing the structural example of the control part of the content data processing apparatus which concerns on embodiment of this invention. It is a functional block diagram showing the example of a structure of the control part of the content management apparatus which concerns on embodiment of this invention. It is a flowchart figure showing the example of operation of the contents processing system concerning an embodiment of the invention. It is a flowchart figure showing the example of operation of the contents processing system concerning an embodiment of the invention. It is a flowchart figure showing the example of operation of the contents data processing device concerning an embodiment of the invention. It is a flowchart figure showing the example of operation of the contents management device concerning an embodiment of the invention. It is a flowchart figure showing another example of operation | movement of the content management apparatus which concerns on embodiment of this invention. It is a flowchart figure showing another operation example of the content management apparatus which concerns on embodiment of this invention.

  Embodiments of the present invention will be described with reference to the drawings. The content processing system according to the embodiment of the present invention, as illustrated in FIG. 1, receives content data from a content data processing device 1 functioning as a device that provides content, and content data from the content data processing device, stores the content data. And a content management device 2 to be managed.

  The content data processing apparatus 1 is a device that generates content data (generated by taking an image with a built-in camera or the like) and provides it to other devices, such as a smartphone. In an example of the present embodiment, it is assumed that the content data processing apparatus 1 is a smartphone that can capture and generate image content such as a camera.

  Specifically, in the present embodiment, as illustrated in FIG. 1, the content data processing apparatus 1 includes a control unit 11, a storage unit 12, an operation unit 13, a display unit 14, an imaging unit 15, and a communication unit 16. Prepare.

  Here, the control unit 11 is a program control device such as a CPU, and operates according to a program stored in the storage unit 12. In the present embodiment, the control unit 11 executes processing as an operating system, performs processing of an application program for realizing functions of a device such as a telephone call and transmission / reception of an e-mail, and an imaging unit. The image data captured at 15 is stored in the storage unit 12 as content data (original data) before conversion, and the following processing is performed.

  That is, in the present embodiment, the control unit 11 of the content data processing apparatus 1 reads the original data that is the content data before conversion from the storage unit 12 and converts it into content data (transcoded data) in a predetermined data format. (Transcode processing) Further, the control unit 11 associates the original data with the transcode data obtained by converting the original data in accordance with a user instruction or the like, and transmits the associated data to the content management apparatus 2 via the communication unit 16. Detailed operation of the controller 11 will be described later.

  The storage unit 12 is a memory device or the like and holds a program executed by the control unit 11. The storage unit 12 also operates as a work memory of the control unit 11 and holds content data (original data or data including transcoded transcoded data) and the like.

  The operation unit 13 is a button, a touch panel arranged on the display unit 14, and the like. The operation unit 13 accepts a user instruction operation and outputs information representing the contents of the accepted instruction operation to the control unit 11. The display unit 14 is a display or the like, and displays information according to an instruction input from the control unit 11.

  The imaging unit 15 is a camera or the like, captures an image in accordance with a user instruction, and outputs the captured image as content data (original data) to the control unit 11.

  The communication unit 16 includes a mobile phone communication module that communicates with a mobile phone network, and a wireless communication module that communicates with other devices via a wireless LAN or the like. The communication unit 16 communicates with the content management apparatus 2 via, for example, a wireless LAN, and sends content data and the like to the content management apparatus 2 in accordance with an instruction input from the control unit 11. . Further, the communication unit 16 outputs data received from the content management device 2 or the like to the control unit 11 via a wireless LAN or the like.

  As illustrated in FIG. 2, the content management device 2 includes a control unit 21, a storage unit 22, an operation unit 23, a display control unit 24, and a communication unit 25.

  Here, the control unit 21 is a program control device such as a CPU, and operates according to a program stored in the storage unit 22. In the present embodiment, the control unit 21 receives content data from the content data processing apparatus 1 and accumulates and manages the received content data in the storage unit 22. When the control unit 21 accepts original data and transcoded data as content data, the control unit 21 associates the original data with the transcoded data and stores them in the storage unit 22. Further, the control unit 21 obtains data specifying information unique to the original data (for example, a hash value such as MD5, which corresponds to the content identification information of the present invention) calculated by a predetermined method based on the original data. The list (a list of data specifying information such as hash values based on the original data stored in the storage unit 22) is held in the storage unit 22. The acquisition of the data specifying information may be acquired by calculation in another device, or may be acquired and calculated by the control unit 21 itself.

  Further, the control unit 21 follows the user's instruction operation, and among the content data stored in the storage unit 22, data in a format that can be reproduced by the processing of the control unit 21 (original data if the original data can be reproduced). If the original data is not reproducible, reproducible transcoded data stored in association with the original data is output to the display control unit 24 (presentation process).

  The control unit 21 sends content data to the content data processing device 1 in accordance with an instruction received from the content data processing device 1. Details of specific processing of these control units 21 will be described in detail later.

  The storage unit 22 includes a memory device and a disk device. The storage unit 22 holds a program executed by the control unit 21. The storage unit 22 also operates as a work memory for the control unit 21. Furthermore, the storage unit 22 stores content data. In the present embodiment, as illustrated in FIG. 3, if the original data is in a format that can be played back by the control unit 21 as the content data, the control unit 21 based on the original data and the original data Related image data to be generated or acquired is stored in association with each other (X). The related image data may be, for example, a thumbnail image if the content data is image data, and may be an artwork image of an album in which the music is recorded if the content data is music data. The related image data may not be one. For example, as long as the thumbnail image data, there may be a plurality of related image data such as a relatively high resolution, a relatively low resolution, and so on.

  Further, among the content data stored in the storage unit 22, when the original data is not in a format that can be reproduced by the control unit 21, the original data provided by the processing of the content data processing device 1 described later Transcoded data is stored in association with each other (Y). The original data and the transcoded data are further held in association with related image data generated or acquired by the control unit 21 based on the transcoded data.

  The operation unit 23 includes a button, a remote controller 23R, and a reception unit that receives a signal transmitted from the remote controller 23R. When the operation unit 23 accepts a user operation from a button, a remote controller 23R, or the like, the operation unit 23 outputs the content of the instruction represented by the operation to the control unit 21.

  The display control unit 24 is connected to a home television or the like, and displays an image on the connected home television or the like according to an instruction input from the control unit 21.

  The communication unit 25 includes a wireless communication module that communicates with other devices via a wireless LAN or the like. The communication unit 25 communicates with the content data processing device 1 and outputs data received from the content data processing device 1 to the control unit 21. The communication unit 25 sends content data and the like to the content data processing apparatus 1 in accordance with an instruction input from the control unit 21.

  Next, functional configurations of the content data processing device 1 and the content management device 2 according to the present embodiment will be described. As illustrated in FIG. 4, the control unit 11 is functionally configured to include a content data providing unit 50 and a content data acquiring unit 60. The content data processing device 1 according to the present embodiment is, for example, a smartphone, has a function as a camera, and sends the content data to the content management device 2 using image data captured by the camera as content data. .

  The content data providing unit 50 includes a data specifying information calculation unit 51, a duplication confirmation unit 52, a processing determination unit 53, a transcoding unit 54, and a transmission processing unit 55.

  The data specifying information calculation unit 51 is content still data captured still image data or moving image data (hereinafter collectively referred to as image data. The captured image data itself is the example of the present embodiment. Of the image data to be transmitted to the content management apparatus 2 is received from the user. The data specifying information calculation unit 51 calculates the data specifying information by a predetermined method based on the designated image data (original data). Here, it is assumed that the data specifying information is a hash value such as MD5.

  In the following example, it is assumed that the data format of moving image data captured by the camera differs depending on the version of the operating system of the content data processing apparatus 1. Specifically, in a relatively old version (referred to as an old version), 2K (1920 × 1080 pixels) H.264 is used. Moving image data is captured in the H.264 format, and in a relatively new version (referred to as a new version), 2K H.264 is selected by the user. H.264 format and 4K H.264 format. H.264 format and H.264 format. It is assumed that moving image data is captured in a data format selected from either the H.265 format.

  That is, under the old version of the operating system, the content data processing apparatus 1 is not necessarily 4K H.264. H.264 format and H.264 format. The moving image data picked up in any of the H.265 format is not always reproducible, but the content data processing apparatus 1 is compatible with 2K H.264 under the new version of the operating system. H.264 format and 4K H.264 format. H.264 format and H.264 format. The moving image data in any data format with the H.265 format can be reproduced, and for compatibility with other devices, 4K H.264 format. H.264 format and H.264 format. The moving image data with the H.265 format is converted into 2K H.264 format. It is assumed that the process of converting to moving image data in the H.264 format can be executed.

  The duplication confirmation unit 52 communicates with the content management device 2 that is the transmission destination of the content data, transmits the data specifying information calculated by the data specifying information calculation unit 51 to the content management device 2, and the content management device 2, it is confirmed whether or not the data specified by the data specifying information has already been accumulated. The duplication confirmation unit 52 receives information indicating whether or not the data specified by the transmitted data specifying information has already been accumulated from the content management device 2, and the received information is specified by the transmitted data specifying information. If it is information that the data to be stored has already been stored, it is determined that the specified content data (here, image data) has already been stored in the content management apparatus 2.

  Alternatively, the duplication confirmation unit 52 may obtain a list of data specifying information from the content management device 2 and perform duplication confirmation processing by itself. In this case, the duplication confirmation unit 52 checks whether the data specifying information calculated by the data specifying information calculating unit 51 is included in the acquired list, and if included, the specified content data (here, Image data) is already stored in the content management apparatus 2.

  If the information received from the content management device 2 is information indicating that the data specified by the transmitted data specifying information is not stored (or if the duplication checking process is performed by itself) If the data specifying information calculated by the data specifying information calculating unit 51 is not included in the acquired list), the content determination source of the data specifying information by the data specifying information calculating unit 51 is processed. To 53.

  The process determination unit 53 receives the content data and determines the content data to be transmitted. As a specific example, the process determination unit 53 according to an example of the present embodiment determines whether or not the content data is moving image data. If the content data is moving image data, the data format of the moving image data is further determined. However, it is determined whether or not the data format is predetermined as a data format that can be reproduced on the content management apparatus 2 side.

  As an example, 2K H.264 is a data format that can be played back on the content management apparatus 2 side. Assuming that the H.264 format is defined, the process determination unit 53 determines that the H.264 format is When content data in the H.265 format is input, it is determined that the data format is not predetermined as a data format that can be reproduced on the content management apparatus 2 side.

  H. Even in the H.264 format, if the content data is 4K (about 3840 × 2160 pixels), the processing determination unit 53 determines that the data format is not predetermined as a data format reproducible on the content management apparatus 2 side. To do.

  When the process determination unit 53 determines that the input content data is not a data format predetermined as a data format that can be reproduced on the content management device 2 side, the process determination unit 53 outputs the content data to the transcoding unit 54.

  The processing determination unit 53 also determines whether the input content data is still image data or moving image data that has a data format that is predetermined as a data format that can be reproduced on the content management device 2 side. When it is determined that the data is data, the content data is output to the transmission processing unit 55.

  The transcode unit 54 functions when the content data processing apparatus 1 is operating on a new version of the operating system, and the input content data is determined in advance as a data format that can be reproduced on the content management apparatus 2 side. Is converted to content data in the specified data format. Specifically, as described above, 2K H.264 is a data format that can be played back on the content management apparatus 2 side. Assuming that the H.264 format is defined, the transcoding unit 54 is, for example, H.264. In response to input of content data in the H.265 format, the content data is converted into 2K H.264. It is converted into content data in H.264 format. As this conversion processing method, a widely known method can be adopted, and a detailed description thereof will be omitted here.

  In addition, the transcoding unit 54 is a 4K H.264. Even when content data in the H.264 format is received, If the content data in the H.264 format is not in a data format that can be played back on the content management apparatus 2 side, this 4K H.264 format. H.264 format content data is converted to 2K H.264 format. H.264 format content data or the like is converted into a data format that can be played back on the content management apparatus 2 side. In this way, the process of converting the resolution without changing the encoding method is also included in the transcoding process.

  In addition, the transcoding process in this embodiment includes a process of converting or replacing at least a part of data according to a predetermined rule, such as a bit rate, a data size, and an encoding method.

  The transcode unit 54 outputs the input content data (original data) and the converted content data (transcode data) to the transmission processing unit 55.

  Upon receiving content data input from the processing determination unit 53, the transmission processing unit 55 sends the content data (in this case, only original data) to the content management device 2. When the transmission processing unit 55 receives the input of the original data and the transcoded data as the content data from the transcoding unit 54, the transmission processing unit 55 associates the original data with the transcoded data (content management device as a file associated with each other). 2 to the content management apparatus 2 in such a manner that 2 can be recognized.

  The transmission processing unit 55 sets the data management apparatus 2 to recognize the original data and the transcoded data as mutually related files, so that the data specifying information that is common content identification information or a separately issued random number Or as a file with a file name that includes serial number identification information in the full path (stored in a directory with the common content identification information or common identification information name, or includes common content identification information as part of the file name) The original data and the transcoded data are stored at least temporarily in the file system, and the original data and the transcoded data are transferred to the content management apparatus 2 together with the full path or file name information.

  Further, in this method of transmitting a plurality of data as mutually related files, the transmission is performed using HTTP without using a file name or the like, and parameter information at that time (POST or GET parameter information) The content management apparatus 2 that transmits and receives common content identification information or separately issued random or serial number identification information as a plurality of pieces of common content identification information or common identification information transmitted as parameters. It is also possible to carry out the above data by processing such as storing them in a database in association with a common key as a file related to each other, and the present invention is not limited to this example, and various methods can be adopted.

  In the present embodiment, the transmission processing unit 55 adds the data specifying information calculated by the data specifying information calculating unit 51 to the content data (original data or transcoded data) to be transmitted, and sends it to the content management apparatus 2. Shall be sent out.

  The content data acquisition unit 60 includes a request data determination unit 61, a data request unit 62, a data reception unit 63, and a storage unit 64.

  The request data determination unit 61 determines the data format of content data requested to the content management apparatus 2. In an example of the present embodiment, the content data processing device 1 receives a list of content data stored in the content management device 2 from the content management device 2 as a list of content data that can be provided by the content management device 2, for example. get. This list can be received as a list of sets of content data data identification information and related images (thumbnail images, etc.), and the content data processing apparatus 1 displays a list of related images and requests from the user. Accept selection of content data.

  The request data determination unit 61 checks whether or not the content data selected by the user is moving image data. If the content data is not moving image data, an instruction (acquisition request) for requesting acquisition of original data is requested. To the unit 62.

  In the case of moving image data, the request data determination unit 61 converts the 4K H.264 format into a data format that can be reproduced by the content data processing apparatus 1. H.264 format and H.264 format. 265 format is included (whether it includes a data format of moving image data that can be provided under a new version of the operating system). This determination can be made by examining the version of the operating system of the content data processing apparatus 1.

  Then, the request data determination unit 61 converts the 4K H.264 format into a data format that can be reproduced by the content data processing apparatus 1. H.264 format and H.264 format. If it is determined that the H.265 format is included, an original data acquisition request is output to the data request unit 62.

  In addition, the request data determination unit 61 converts the 4K H.264 format into a data format that can be reproduced by the content data processing apparatus 1 when the content data selected by the user is moving image data. H.264 format and H.264 format. If the H.265 format is not included, an instruction (acquisition request) for requesting acquisition of transcode data is output to the data request unit 62.

  In accordance with an instruction input from the request data determination unit 61, the data request unit 62 sends information indicating whether original data or transcoded data is requested to the content management apparatus 2 together with data specifying information for specifying content data. Send to. The data receiving unit 63 receives the content data sent from the content management apparatus 2 in response to the request output from the data requesting unit 62, and outputs the received content data to the storage unit 64. The storage unit 64 stores the content data output from the data receiving unit 63 in the storage unit 12.

  Further, as illustrated in FIG. 5, the control unit 21 of the content management apparatus 2 functionally includes a content management unit 70, a content transmission unit 80, and an inquiry processing unit 90. The content management unit 70 includes a content data receiving unit 71 and an accumulation processing unit 72. The content sending unit 80 includes a request receiving unit 81, a content data reading unit 82, and a content data sending unit 83.

  When the content data receiving unit 71 of the content management unit 70 receives the original data that is the content data from the content data processing device 1 together with the data specifying information, the content data receiving unit 71 outputs the received original data to the accumulation processing unit 72. Further, when the content data receiving unit 71 receives the original data and the transcoded data that are the content data from the content data processing apparatus 1 together with the data specifying information, the content data receiving unit 71 stores the received original data and the transcoded data. Output to.

  The accumulation processing unit 72 stores the input content data in the storage unit 22 in association with the input data specifying information.

  For example, when the storage processing unit 72 accepts original data and transcode data as content data, the storage unit 72 stores the original data and the transcode data in association with each other. At this time, the storage processing unit 72 receives and acquires the data specifying information unique to the original data, which is calculated by a predetermined method based on the original data, from the content data receiving unit 71, and associates the data specifying information with the data specifying information, Original data and transcoded data are stored in the storage unit 22.

  In addition, when the original data is received as the content data, the accumulation processing unit 72 receives and acquires data specifying information unique to the original data from the content data receiving unit 71, and stores the original data in association with the data specifying information. Accumulate in unit 22.

  Further, the accumulation processing unit 72 adds and updates the acquired data specifying information to the list of data specifying information stored in the storage unit 22.

  The storage processing unit 72 also converts the original data (when the original data is in a data format reproducible by the control unit 21) or transcoded data (when the original data is not in a data format reproducible by the control unit 21). Based on this, the related image data is acquired. As the acquisition of the related image data, when the content data is image data, it is possible to employ a widely known method for acquiring the related image data by generating a thumbnail image thereof. If the content data is music data, a widely known method such as obtaining image data of album artwork from a server on the Internet can be employed.

  Then, the accumulation processing unit 72 stores the related image data acquired here in the storage unit 22 in association with the corresponding original data or transcode data.

  If the original data is in a format reproducible by the control unit 21 as illustrated in FIG. 3 by the operation of the storage processing unit 72, the data specifying information, the original data, and the related image data are associated with each other. It is in a held state (X).

  If the original data is not in a format that can be reproduced by the control unit 21 among the content data stored in the storage unit 22, the data specifying information, the original data, the transcoded data, and the related image data are associated with each other. (Y).

  The request receiving unit 81 of the content sending unit 80 accepts a content data acquisition request from the content data processing apparatus 1. As described above, this request is for requesting either original data or transcoded data together with data specifying information.

  The content data reading unit 82 attempts to read the data in the requested data format from the original data or transcoded data associated with the data specifying information received by the request receiving unit 81.

  For example, if the request receiving unit 81 accepts an original data acquisition request, the content data reading unit 82 associates the content data stored in the storage unit 22 with the data specifying information accepted by the request receiving unit 81. The read original data is read and output to the content data sending unit 83.

  On the other hand, if the request receiving unit 81 accepts the transcode data acquisition request, the content data reading unit 82 sets the data specifying information accepted by the request receiving unit 81 among the content data stored in the storage unit 22. Check if there is associated transcode data. If there is transcode data associated with the data specifying information received by the request receiving unit 81, the content data reading unit 82 reads the transcode data and outputs it to the content data sending unit 83.

  If there is no transcoded data associated with the data specifying information received by the request receiving unit 81, the content data reading unit 82 receives the content data stored in the storage unit 22 by the request receiving unit 81. The original data associated with the data specifying information is read and output to the content data sending unit 83.

  The content data sending unit 83 sends the content data output from the content data reading unit 82 to the content data processing apparatus 1 that is the content data acquisition request source.

  The inquiry processing unit 90 accepts an inquiry from the content data processing apparatus 1 as to whether the data identification information is included in the list of data identification information held in the content management apparatus 2 together with the data identification information.

  Then, the inquiry processing unit 90 checks whether or not the data specifying information received from the content data processing apparatus 1 is included in the list of held data specifying information, and the received data specifying information is stored. If it is included in the list of data specifying information, the information to that effect is returned to the inquiring content data processing apparatus 1. Further, when the received data specifying information is not included in the held data specifying information list, the inquiry processing unit 90 sends the information to that effect to the content data processing apparatus 1 that is the inquiry source. respond.

  When the inquiry processing unit 90 receives an acquisition request for a list of data specifying information held in the content management apparatus 2 from the content data processing device 1, the inquiry processing unit 90 provides a list of the held data specifying information. May be performed. In this case, the data specifying information is received from the content data processing apparatus 1, and it is checked whether or not the received data specifying information is included in the list of the stored data specifying information, and the result is returned as a response. It is not always necessary to perform processing.

[Processing for still image data]
In the example described so far, the case where there is a data format of moving image data that cannot be reproduced by the content management device 2 (or the content data processing device 1) has been considered. Similarly, there may be cases where there is something that cannot be reproduced by the content management device 2 (or the content data processing device 1).

  For example, in recent years, when still image data is captured, a moving image for a predetermined time before and after the still image data is captured is acquired, and the moving image data is stored together with the captured still image data. There are smartphones that generate still image data with video.

  In this case, the data format of the moving image data attached to the still image data may be reproducible depending on the model or operating system version, as well as the moving image data itself. Therefore, in the content data processing apparatus 1 of the content processing system according to the present embodiment, as the operation of the process determination unit 53, the still image data is also transmitted with moving images with respect to the still image data to be transmitted to the content management apparatus 2. If there is a moving image, it is checked whether the moving image data attached to the still image data is moving image data in a data format that can be reproduced by the content management device 2 and reproduced. If the data format is possible, still image data (which will be original data) and moving image data attached to the still image data are output to the transmission processing unit 55 together with the data specifying information.

  On the other hand, the still image data to be transmitted to the content management apparatus 2 includes a moving image, and the moving image data attached to the still image data is not moving image data in a data format that can be reproduced by the content management apparatus 2. In this case, the moving image data attached to the still image data is output to the transcoding unit 54 to generate moving image data (transcoded data) in a data format that can be reproduced by the content management apparatus 2.

  In this case, the transcode unit 54 specifies still image data (original data), moving image data attached to the still image data (hereinafter referred to as original attached video data), and transcode data. The information is output to the transmission processing unit 55 together with the information.

According to this example:
(A) When the content data to be transmitted is moving image data and is in a data format that can be played back by the content management device 2: original data (one file) is sent to the content management device 2,
(B) When the content data to be transmitted is moving image data and is not in a data format that can be reproduced by the content management device 2: Original data, transcoded data, and (2 files) are sent to the content management device 2 And
(C) When the content data to be transmitted is still image data and no moving image data is attached (when it is not still image data with moving images): Original data (one file) is sent to the content management device 2 And
(D) The content data to be transmitted is still image data, moving image data is attached (still image data with moving image), and the moving image data can be reproduced by the content management apparatus 2 In the case of the format: Still image data as original data, attached moving image data, and (2 files) are sent to the content management device 2,
(E) The content data to be transmitted is still image data, moving image data is attached (still image data with moving image), and the moving image data can be reproduced in the content management apparatus 2 When not in format: Still image data as original data, attached moving image data, transcoded data based on the attached moving image data, and (3 files) are sent to the content management apparatus 2.

  Also, in the case of handling still image data with moving images in this way, the content management device 2 side acquires the original data, transcode data, and original attached moving image data received from the content data processing device 1 based on the original data. Store in association with data specific information.

  If the data format of the still image data includes those that can be reproduced on the content management device 2 side and those that are not, the content data processing device 1 determines that the still image data of the original data is on the content management device 2 side. If the data format is not reproducible, the original data and the transcoded still image data may be transmitted by performing the transcoding process on the still image data of the original data to obtain the transcoded still image data.

in this case,
(C ′) When the content data to be transmitted is still image data (cannot be played back by the content management device 2) and no moving image data is attached (if it is not still image data with a moving image): Original data , Transcoded still image data, and (2 files) are sent to the content management device 2,
(D ′) The content data to be transmitted is still image data (cannot be played back by the content management device 2), is accompanied by moving image data (still image data with moving image), and the moving image When the data is in a data format that can be played back by the content management device 2: Still image data that is original data, transcoded still image data, original attached moving image data, and (3 files) are sent to the content management device 2,
(E ′) The content data to be transmitted is still image data (cannot be played back by the content management device 2), is accompanied by moving image data (still image data with moving image), and the moving image When the data is not in a data format that can be played back by the content management device 2: still image data that is original data, transcoded still image data, original attached moving image data, and transcoded data based on the attached moving image data (4 files) is sent to the content management apparatus 2.

  Further, in the case of this example, the processing for providing content data from the content management device 2 to the content data processing device 1 is as follows.

  In this case, the request data determination unit 61 of the content data processing apparatus 1 determines whether or not the content data processing apparatus 1 can reproduce the moving image data with the original data when the content data selected by the user is still image data. If it can be reproduced, the acquisition of the moving image data with the original data is requested. Here, if reproduction is not possible, the request data determination unit 61 requests acquisition of transcode data.

  Further, the request data determination unit 61 of the content data processing apparatus 1 determines whether or not the content data processing apparatus 1 can reproduce the original data (still image data), and if the reproduction is possible, obtains the original data. Request. If the content data processing apparatus 1 cannot reproduce the original data, the request data determination unit 61 requests acquisition of transcoded still image data.

  In response to these requests, the content management apparatus 2 stores the moving image data (original attached moving image data) attached to the original data in the storage unit 22 as processing of the content data reading unit 82 when requested. It is checked whether or not there is original attached moving image data associated with the data specifying information received by the request receiving unit 81 among the content data. If there is original attached moving image data associated with the data specifying information received by the request receiving unit 81, the content data reading unit 82 reads out the original attached moving image data and outputs it to the content data sending unit 83.

  The content data reading unit 82 of the content management device 2 is associated with data specifying information received by the request receiving unit 81 among the content data stored in the storage unit 22 when transcode data is requested. Check whether there is original attached video data. If there is original attached moving image data associated with the data specifying information received by the request receiving unit 81, whether there is further transcode data associated with the data specifying information received by the request receiving unit 81? Check out. If there is transcoded data associated with the data specifying information received by the request receiving unit 81, the content data reading unit 82 reads the transcoded data from the storage unit 22 and outputs it to the content data sending unit 83. .

  If there is no transcoded data associated with the data specifying information received by the request receiving unit 81, the content data reading unit 82 is provided with the original attachment associated with the data specifying information received by the request receiving unit 81. The moving image data is read from the storage unit 22 and output to the content data sending unit 83.

  On the other hand, the content data reading unit 82 of the content management apparatus 2 indicates that there is no attached moving image data if there is no original attached moving image data associated with the data specifying information received by the request receiving unit 81 in these processes. A response is sent to the content data processing apparatus 1.

  By this processing, the content management apparatus 2 that has received the request for acquiring the original attached moving image data provides the requested original attached moving image data if there is the requested original attached moving image data. Further, the content management device 2 that has received the acquisition request for the transcode data provides the requested transcode data if there is the requested transcode data, and if there is no transcode data, the requested transcode. The original attached video data corresponding to the data will be provided.

  Further, the content management apparatus 2 also provides original data for still image data when receiving an acquisition request for original data, and when receiving an acquisition request for transcoded still image data, Provide image data.

[Operation]
The content processing system according to the present embodiment basically has the above configuration and operates as follows.

  In the following description of the present embodiment, the content data processing device 1 is assumed to be a smartphone, and content data that is original data (here, moving image data or still image data) is captured by a camera. get. Alternatively, content data taken by another camera may be acquired via a card reader or a network. Further, the content data is not necessarily photographed but may be obtained by drawing or the like. In the following example, it is assumed that content data to be transmitted to the content management apparatus 2 is selected by the user.

  In this example, the content management system according to the present embodiment executes the processes shown in FIGS. That is, the content data processing apparatus 1 calculates data specifying information by a predetermined method for the content data (original data) selected by the user (S11). Here, the data specifying information is assumed to be a hash value.

  The content data processing device 1 communicates with the content management device 2 to send the hash value calculated in the process S11 to the content management device 2, and in the hash value list held in the content management device 2, An inquiry is made as to whether or not the sent hash value information is included (S12).

  The content data processing device 1 examines the content of the response to the inquiry (S13), and the hash value calculated in the processing S11 is included in the hash value list (that is, the selected content data is already in the content management device 2). If there is a response indicating that it is managed (S13: Yes), the content data processing apparatus 1 does not perform the following transmission processing (thus, when processing a plurality of content data, unprocessed content) If there is data, the process returns to step S11 to continue the process).

  On the other hand, if there is a response indicating that the hash value calculated in process S11 is not included in the list of hash values in process S13 (S13: No), whether or not the selected content data is moving image data. If it is moving image data (S14: Yes), the content data processing apparatus 1 determines whether it is moving image data in a data format to be transcoded (S15). Here, whether or not the data format is to be transcoded is determined based on whether or not the selected content data is a data format that is predetermined as a data format that can be reproduced on the content management apparatus 2 side.

  Here, when it is determined that the moving image data is in the data format to be transcoded (S15: Yes), the content data processing apparatus 1 converts the selected content data (original data) into the moving image data in a predetermined data format. Is converted (transcoded) into transcoded data (S16). Here, as the data format of the transcoded data, a data format that can be reproduced on the content management apparatus 2 side is selected.

  The content data processing device 1 then sends the generated transcoded data and original data to the content management device 2 (S17).

  In addition, when it is determined in the processing S15 that it is not moving image data in a data format to be transcoded (S15: No) and in the processing S14, it is determined that it is not moving image data (S14: No), the selection is made. It is determined whether the content data thus obtained is still image data with a moving image (S18).

  If the content data selected here is still image data with a moving image (S18: Yes), the process proceeds to process A (FIG. 7), and it is determined whether or not the data is in a data format to be transcoded (FIG. 7). S31). In this determination in step S31, the determination is made based on whether or not the original attached moving image data attached to the still image data has a data format that is predetermined as a data format that can be reproduced on the content management apparatus 2 side.

  If it is determined that the data is in a data format to be transcoded (S31: Yes), the content data processing apparatus 1 converts the original attached moving image data attached to the selected content data into a predetermined data format. Conversion (transcoding) into moving image data is performed to generate transcoding data (S32). Here, as the data format of the transcoded data, a data format that can be reproduced on the content management apparatus 2 side is selected.

  Then, the content data processing device 1 sends the generated transcode data, original data, and original attached moving image data to the content management device 2 (S33), and proceeds to processing B.

  On the other hand, when the data is not in the data format to be transcoded in processing S31 (S31: No), the content data processing device 1 sends the original data and the original attached moving image data to the content management device 2. (S34), the process proceeds to process B.

  If the content data processing device 1 is not still image data with moving images in step S18 (S18: No), the content data processing device 1 sends the original data to the content management device 2 (S19). If it is determined in step S15 that the moving image data is not in the data format to be transcoded, the process may move to step S19 instead of step S18.

  After moving to the process B, the content data processing apparatus 1 ends the process when the original data is sent to the content management apparatus 2 in the process S19. In addition, when there are a plurality of selected content data, the content data processing apparatus 1 repeatedly executes the processes of steps S11 to S19 (and S31 to S34).

  Further, when the content management device 2 receives content data from the content data processing device 1 (processing S19, S33, S34 of the content data processing device 1), the received content data is accumulated in the storage unit 22 (S20). Further, the hash value generated based on the original data among the content data is added to the list and stored (S21).

  As described above, in the present embodiment, the data specifying information of the content data based on the original data is held, and it is determined whether the content data is already managed using the data specifying information based on the original data. Therefore, every time transcoding is performed, even if the transcoding results are different, it is possible to determine whether or not the data is already stored, which may hinder data management. There is no.

  The content management device 2 also has content in a data format that can be reproduced (rendered to bitmap data, etc.) in the content management device 2 among the content data stored in the storage unit 22 in accordance with a user instruction operation. Content data presentation processing is performed based on the data.

  That is, for each piece of content data stored in the storage unit 22, if the original data can be reproduced, the content management device 2 renders the original data into bitmap data and outputs it to the display control unit 24.

  In addition, for each piece of content data stored in the storage unit 22, if the original data is not reproducible, the content management device 2 has reproducible transcoded data stored in association with the original data. If there is such transcoded data, the transcoded data is rendered into bitmap data and output to the display control unit 24.

  In addition, the content data processing device 1 executes processing for acquiring content data managed by the content management device 2. In this process, for example, when there are two or more content data processing devices 1, the content data sent from the first content data processing device 1 is accumulated in the content management device 2, and the second content data processing device 1 This is used when acquiring the content data from the management apparatus 2.

  At this time, the second content data processing device 1 does not necessarily play back the content data that can be played back by the first content data processing device 1, and the first content data processing device 1 plays back the content data. Even content data that can be reproduced may not be reproducible in the second content data processing apparatus 1.

  In the process of acquiring the content data, the content data processing apparatus 1 according to the present embodiment acquires a list of content data stored in the content management apparatus 2 and presents it to the user (S41). This list indicates related image data (eg, thumbnail image data) related to the content data, data specifying information for specifying the content data, and whether the content data is moving image data or still image data. Information shall be included.

  The content data processing apparatus 1 accepts the data specifying information of the content data specified by the user as an acquisition target from the presented list (S42). Then, the content data processing apparatus 1 determines whether the content data (specified content data) specified by the received data specifying information is moving image data or still image data (S43).

  If the designated content data is moving image data (S43: Yes), the content data processing device 1 determines whether or not to request acquisition of original data (S44). This determination is made by, for example, operating system version information of the content data processing apparatus 1 that performs processing for acquiring the content data, or hardware configuration information of the content data processing apparatus 1 (the type of processor used and the operating speed). The memory capacity information, etc., and the memory capacity information may be dynamically changing free capacity information or total capacity information. That is, the information here is dynamic. Or by referring to the information of the reproducible format itself (presence / absence of decoding software).

  That is, depending on the version of the operating system of the content data processing apparatus 1, a relatively new version (new version) is a 2K H.264 file. H.264 format and 4K H.264 format. H.264 format and H.264 format. The moving image data in any data format of the H.265 format can be reproduced, whereas the relatively old version (old version) has a 4K H.264 format. H.264 format and H.264 format. If the moving image data of any data format with the H.265 format is not reproducible, it is determined that the original data (which may be the data format of the H.265 format) is requested for the new version (if it is the old version). , Request acquisition of transcoded data).

  When the content data processing device 1 requests acquisition of original data in step S44 (S44: Yes), the content data processing device 1 requests original data from the content management device 2 (S45). When the content data processing device 1 does not request acquisition of original data in step S44 (S44: No), the content data processing device 1 requests the content management device 2 to acquire transcoded data (S46). .

  The content data processing apparatus 1 receives the content data sent from the content management apparatus 2 in response to the request in the process S45 or S46 (S47), and stores the content data in the storage unit 12 (S48).

  On the other hand, when the content data processing apparatus 1 determines that the content data designated in step S43 is not moving image data (still image data) (S43: No), whether or not to request acquisition of original attached moving image data. Is determined (S51). This determination is also made by referring to the version information of the operating system of the content data processing apparatus 1 performing the processing for acquiring the content data.

  Specifically, if the version of the operating system of the content data processing device 1 is a relatively new version (new version), it is determined that the acquisition of the original attached moving image data is requested (the version of the operating system of the content data processing device 1). If is a relatively old version (old version), it asks for the acquisition of transcoded data).

  When the content data processing device 1 requests acquisition of the original attached moving image data in step S51 (S51: Yes), the content data processing device 1 requests the original attached moving image data from the content management device 2 (S52). In addition, when the content data processing device 1 does not request acquisition of the original attached moving image data in the processing S51 (S51: No), the content data processing device 1 requests the content management device 2 to acquire transcode data ( S53).

  The content data processing device 1 receives the response of the content management device 2 in response to the request in step S52 or step S53 (S54). This response includes content data or a response indicating that there is no content data.

  The content data processing apparatus 1 further determines whether or not to request acquisition of original data (S55). This determination is also made by referring to the version information of the operating system of the content data processing apparatus 1 performing the processing for acquiring the content data.

  Specifically, if the version of the operating system of the content data processing apparatus 1 is a relatively new version (new version), it is determined that the acquisition of original data is requested (the operating system version of the content data processing apparatus 1 is relatively high). If it is an old version (old version), the acquisition of transcoded still image data is requested).

  When the content data processing apparatus 1 requests acquisition of original data in the process S55 (S55: Yes), the content data processing apparatus 1 requests the original data from the content management apparatus 2 (S56). When the content data processing device 1 does not request acquisition of original data in step S55 (S55: No), the content data processing device 1 requests the content management device 2 to acquire transcoded still image data ( S57).

  In response to the request in step S56 or step S57, the content data processing device 1 receives the content data sent by the content management device 2 (S58). Then, the content data processing device 1 checks whether or not the content data of the moving image data has been received in the process S54 (S59). If not received (S59: No), the content data received in the process S58 is stored as it is. Store in the unit 12 (S60).

  On the other hand, when the content data processing apparatus 1 determines that the content data of the moving image data has been received in the processing S54 (S59: Yes), the content data received in the processing S58 and the moving image data received in the processing S54 are combined. The moving image-added still image data is stored in the storage unit 12 (S61).

  Further, the content management apparatus 2 responding to a request made in the process of acquiring content data of the content data processing apparatus 1 operates as follows.

  That is, when the content management device 2 receives a request for acquiring original data or transcoded data of moving image data (request in processing S45 or S46) from the content data processing device 1, as shown in FIG. It is determined whether or not it has been requested (S71), and if it is a transcode data acquisition request (S71: Yes), it is checked whether or not the requested transcode data is stored in the storage unit 22 (S72). Here, when the requested transcode data is not stored in the storage unit 22 (S72: No), or when it is an original data acquisition request in the process S71 (S71: No), the content management device 2 Original data is transmitted (S73).

  If transcode data is stored in step S72 (S72: Yes), the content management apparatus 2 transmits the transcode data (S74).

  Further, the content management apparatus 2 accepts a moving image data acquisition request (request in process S52 or S53) to be included in the still image data with moving image from the content data processing apparatus 1, performs the process shown in FIG. It is checked whether or not the original attached moving image data is stored in the storage unit 22 (S81).

Here, when there is no original attached moving image data associated with the data specifying information related to the content data requested by the content data processing device 1,
(A) When the still image data specified by the data specifying information is not still image data with a moving image,
(B) When the still image data specified by the data specifying information is accumulated in the content management device 2, the corresponding moving image data (moving image data corresponding to the original attached moving image data) is sent to the content management device 2 side. If not,
and so on.

  In the present embodiment, if the requested original attached moving image data is stored in the storage unit 22 (S81: Yes), the content management apparatus 2 determines whether the requested content data is transcoded data. If it is a transcode data acquisition request (S82: Yes), it is checked whether or not the requested transcode data is stored in the storage unit 22 (S83). (S83: Yes), the transcoded data is transmitted (S84). Further, the content management device 2 determines that the transcode data acquisition request is not received in step S82 (S82: No), or the transcode data is not stored in the storage unit 22 in step S83 (S83: No). ) Transmits the original attached moving image data (S85), and ends the process.

  On the other hand, when the requested original attached moving image data is not stored in the storage unit 22 (S81: No), the content management device 2 transmits a response indicating that there is no requested content data (S86).

  Further, when the content management device 2 receives the original data of the still image data or the acquisition request of the transcoded still image data (request in the processing S56 or the processing S57) from the content data processing device 1, the content management device 2 trans It is determined whether or not code still image data is requested, and if it is an acquisition request for transcoded still image data, it is checked whether or not the requested transcoded still image data is stored in the storage unit 22. Here, when the requested transcoded still image data is not stored in the storage unit 22 or when the original data is requested, the content management apparatus 2 transmits the original data. If transcoded still image data is stored in the previous determination, the content management apparatus 2 transmits the transcoded still image data.

[Addition of information in content management device 2]
In the present embodiment, the content management device 2 may add information to content data managed by the content management device 2. As an example, when the content data is image data, when the image data is rotated, or when the imaging date / time is changed, the content management device 2 uses the rotation angle information set by the user or the imaging date / time information. Is added to the content data, or information already added (referred to as accompanying information) is updated.

  In such a case, depending on the data format of the content data, the information to be added may not be added. As an example, in the data of HEIF (High Efficiency Image File Format) format that is the data format of still image data, information on the shooting date and time can be included as data in a so-called Exif (Exchangeable image file format) format. In some cases, these pieces of information are newly added, or software for changing / updating information already included is not implemented.

  Therefore, in consideration of such a case, when the content management apparatus 2 receives an acquisition request for original data of still image data or transcoded still image data (request in process S56 or process S57) from the content data processing apparatus 1. The following processing may be performed (if software for adding or updating additional information to content data in a predetermined format is installed, the following processing is not necessary).

  When the content management apparatus 2 of this example receives an acquisition request (request in process S56 or process S57) of original data of still image data or transcoded still image data from the content data processing apparatus 1, as illustrated in FIG. Then, it is determined whether or not the original data of the requested content data has a data format in which accompanying information cannot be added (S91).

  Specifically, in this determination, the content management apparatus 2 lists and stores the data formats to which the accompanying information can be added, and the data format of the requested original data of the content data is the data to which the accompanying information can be added. What is necessary is just to check whether it is memorize | stored as a format. As an example, the data format to which the accompanying information can be added is JPEG (Joint Picture Experts Group) data, and the data format to which the accompanying information cannot be added (cannot be added) is the HEIF (High Efficiency Image File Format) format. included.

  If the original data of the requested content data is not in a data format to which the accompanying information cannot be added (S91: No), the content management device 2 checks whether there is information to be added (S92). ). If there is no information to be added here (S92: No), the content management device 2 sends the original data of the requested content data (S93). Also, if there is information to be added in the process S92 (S92: Yes), the content management apparatus 2 adds the information to be added to the original data (S94), and proceeds to the process S93 to add the information. The original data of the requested content data is sent out.

  The information to be added includes information on the rotation angle of the image data set by the user's control on the content management apparatus 2 side, information on the shooting date and time, and the like.

  On the other hand, if the original data of the content data requested in the process S91 is in a data format in which accompanying information cannot be added (S91: Yes), the content management device 2 checks whether there is information to be added (S95). ). That is, this process S95 corresponds to determining whether or not there is predetermined accompanying information that cannot be added to the original data associated with the data specifying information that is the received content identification information.

  In step S95, if there is no information to be added (S95: No), the content management apparatus 2 determines whether transcoded still image data is requested (S96), and the transcoded still image data is determined. If not requested (S96: No), the process proceeds to step S93 to send the original data of the requested content data.

  On the other hand, if transcoded still image data is requested in step S96 (S96: Yes), the requested transcoded still image data of the content data is transmitted (S97).

  If there is information to be added in step S95 (S95: Yes), the content management apparatus 2 transcodes the original data to generate transcoded still image data (S98), and the generated transcoded still image is generated. Information to be added is added to the data (S99), the process proceeds to step S97, and the transcoded data of the requested content data to which the information is added is transmitted.

[Other examples of processing for still image data with video]
In the description so far of the present embodiment, the hash value calculated in the process S11 is included in the hash value list acquired from the content management apparatus 2 as in the process S13 illustrated in FIG. 6 of the content data processing apparatus 1. If it is included (that is, the selected content data is already managed in the content management device 2), the processing is ended as it is, but the content selected by the user to be sent to the content management device 2 When the data (original data) is still image data with a moving image, the following processing may be further performed.

  That is, if the content data (original data) selected by the user is still image data with a moving image, the content data processing device 1 is operated by data specifying information of the content data (a predetermined method based on the original data). In addition, it is checked whether or not the original attached moving image data of the content data is stored in the storage unit 22 of the content management device 2 in association with the original data).

  If the original attached moving image data is not stored in the content management device 2, the process proceeds to step S14 to process the still image data with moving image, and the content management device 2 replaces and stores the original data and the like. At the same time, the original attached video data and transcode data are accumulated.

  As a result, with regard to still image data with moving images, even if the original attached moving image data is ignored by past processing and only the still image data is accumulated, the original attached moving image data and its transcoded data are transmitted by newly transmitting. Can be stored and used for processing such as reproduction.

[Other examples of content data]
In the above description, the content data has been described as image data, but the present embodiment is not limited to this. In the present embodiment, the content data may be a document described in PDF or the like, for example. Further, it may be music data including audio data.

  In the case of document data, for example, the content data processing apparatus 1 can reproduce (render and display) PDF, but the content management apparatus 2 cannot reproduce PDF.

  In this case, the content data processing device 1 calculates data specifying information (hash value or the like) based on PDF data (original data), and is stored in the content management device 2 and is managed by the content management device 2. By checking whether or not the calculated hash value is included in the list of hash values, whether the document is already managed by the content management apparatus 2 is identified.

  When the content data processing device 1 is a document that is not managed by the content management device 2, the content data processing device 1 converts a rendering result based on the PDF document (original data) into a JPEG document (transcode data), and the content management device 1 2, the original data and transcoded data are transmitted together with the data specifying information.

  In the content management apparatus 2, the received original data and transcoded data are stored in the storage unit 22 in association with the received data specifying information, and the received data specifying information is added to the list of data specifying information. .

  Thus, every time transcoding (PDF rendering) is performed, even if the result of transcoding is different (time stamp data or the like changes), the content data already accumulated in the content management apparatus 2 Therefore, it is possible to determine whether or not the data management is performed.

  Similarly, for music data, for example, the content data processing apparatus 1 can reproduce AAC (Advanced Audio Coding), while the content management apparatus 2 cannot reproduce music data in the AAC data format. .

  In this case, the content data processing device 1 calculates data specifying information (hash value or the like) based on AAC data (original data), and is stored in the content management device 2 and is managed by the content management device 2. By checking whether or not the calculated hash value is included in the list of hash values, it is identified whether or not the music data is already managed in the content management apparatus 2.

  When the content data processing device 1 is music data that is not managed by the content management device 2, the content data processing device 1 converts AAC music data (original data) into, for example, MP3 (MPEG-1 Audio Layer-3) format music data (transformer). Code data), and the original data and transcoded data are sent to the content management apparatus 2 together with the data specifying information.

  In the content management apparatus 2, the received original data and transcoded data are stored in the storage unit 22 in association with the received data specifying information, and the received data specifying information is added to the list of data specifying information. .

  As a result, every time transcoding (conversion from AAC to MP3) is performed, even if the result of transcoding is different (when the time stamp data etc. changes), it is already stored in the content management apparatus 2. It is possible to determine whether or not the content data is present, and data management is not hindered.

  Further, in the case of music data in this way, the content management device 2 can obtain information such as the artist performing the music or the recorded album from the music data (original data) of AAC. When information such as artist and album can be acquired from transcoded data, image data of album artwork can be downloaded from a server on the Internet using the acquired data as a key, and the downloaded image data can be used as related image data It is possible to store in the storage unit 22 in association with the transcoded data.

[Select transcoding data]
In addition, it is preferable that the transcoded data has a data format in which a relatively large number of devices can be reproduced. In the examples so far, the transcode data is JPEG in the case of image data or a document, and MP3 in the case of music data. However, the present embodiment is not limited to this. As a data format having a relatively large number of reproducible devices, for example, in the case of image data, a format such as PNG may be selected. As the music data, a WAV format or the like may be selected.

  Furthermore, when the content management apparatus 2 outputs an image or the like obtained by reproducing the transcoded data to, for example, a home television, the transcoded data has a data format based on the performance of the output home television. It may be selected. In this case, the user of the content management apparatus 2 preliminarily uses information based on the performance of the household television as the output destination with respect to the content management apparatus 2 (for example, a television capable of displaying a resolution of about 2K, or about 4K). (For example, if the resolution of the TV is a displayable television).

  When the content data processing apparatus 1 generates transcode data to be transmitted to the content management apparatus 2, the content data processing apparatus 1 may receive the setting from the content management apparatus 2 and select a data format of the transcode data. . For example, in the setting received from the content management apparatus 2, a TV capable of displaying a resolution of about 4K is connected, and the content management apparatus 2 has 4K H.264. If the image data in the H.264 format is reproducible, the content data processing apparatus 1 uses 4K H.264 as the data format of the transcode data. H.264 format is selected, and the original data is converted into transcoded data of the data format.

  On the other hand, since the content management apparatus 2 always holds the original data, the original data is transmitted to the content data processing apparatus 1 (such as a smartphone) that requests acquisition of the original data. That is, the content data processing apparatus 1 can acquire original data before transcoding.

[Delete transcoded data]
In the case where the content data is image data, the content management device 2 only needs to be able to acquire related image data such as thumbnail image data, and the transcode data is sent to the content data processing device 1 every time it is played back. It can also be generated.

  Therefore, from the viewpoint of securing the storage capacity of the storage unit 22, the content management apparatus 2 stores the original data and the related image data when storing the content data after the related image data is acquired, and transcode data. May be discarded without accumulating.

[Effect of the embodiment]
In the present embodiment, even when the content data held by the content data processing device 1 is content data in a data format that cannot be reproduced by the content management device 2, it can be transcoded and reproduced by the content data processing device 1. A data format can be generated and provided to the content management apparatus 2, and the content management apparatus 2 can perform processing such as reproduction or acquisition of related image data, and the content management apparatus 2 must have a transcoding function. Disappears.

  At this time, since it is checked whether or not the content data is already managed in the content management device 2 using data specifying information unique to the original data, such as a hash value based on the original data before transcoding, the transcoding is performed. Even if the result of transcoding is different each time it is performed (such as when the time stamp data changes), it is determined whether the content data is already stored in the content management device 2 or not. Can be prevented and data management will not be hindered.

  In the present embodiment, since the transcode data is stored in association with the original data in the content management apparatus 2, for example, transcode data based on the original data acquired in the first content data processing apparatus 1 is generated, When the original data and the transcode are transmitted to the content management device 2 and stored, even if the second content data processing device 1 cannot reproduce the original data, the transcode data is stored in the content. Retrievable content data can be acquired by requesting and acquiring from the management apparatus 2. Thus, the content data can be smoothly exchanged between the plurality of content data processing devices 1 via the content management device 2.

  Furthermore, in an example of the present embodiment, the content management apparatus 2 does not necessarily need to reproduce and output content data to a home television or the like. In this case, it is not always necessary to store transcoded data.

DESCRIPTION OF SYMBOLS 1 Content data processing apparatus, 2 Content management apparatus, 11 Control part, 12 Storage part, 13 Operation part, 14 Display part, 15 Imaging part, 16 Communication part, 21 Control part, 22 Storage part, 23 Operation part, 24 Display control Unit, 25 communication unit, 50 content data providing unit, 51 data specifying information calculating unit, 52 duplication checking unit, 53 processing determining unit, 54 transcoding unit, 55 transmission processing unit, 60 content data acquiring unit, 61 request data determining unit 62 data request unit 63 data reception unit 64 storage unit 70 content management unit 71 content data reception unit 72 storage processing unit 80 content transmission unit 81 request reception unit 82 content data reading unit 83 content data Sending part, 90 Inquiry processing part.

Claims (8)

A content processing system including a content data processing device that provides content data, and a content management device that is communicably connected to the content data processing device, accepts content data from the content data processing device, and stores and manages the content data Because
The content data processing device includes:
Means for receiving original data which is content data before conversion, and transcoded data obtained by converting the original data;
Means for transmitting the received original data in association with the transcoded data,
The content management device includes:
A content processing system that stores original data and transcode data received from the content data processing apparatus in association with common content identification information, and uses the transcode data for content data presentation processing. A content data processing device that is communicably connected to a content management device that manages original data that is content data before conversion and transcoded data obtained by converting the original data in association with each other,
Means for receiving content data to be processed, transcoding the received content data as original data, and generating transcoded data;
A content data processing apparatus comprising: transmission means for associating the received original data with transcoded data and transmitting the data to the content management apparatus. The content data processing device according to claim 2,
Means for calculating the data specifying information by a predetermined method using the received original data as a processing target;
Of the original data stored by the content management device, when the data specifying information is calculated based on the original data, the data specifying information that matches the data specifying information calculated based on the processing target Means for determining whether or not original data exists,
The transmission means is calculated based on the processing target when the predetermined data specifying information is calculated based on the original data among the original data accumulated by the content management apparatus as a result of the determination. A content data processing apparatus that transmits the received original data and the transcoded data in association with each other if there is no original data that is the basis of the data specifying information that matches the data specifying information. A content management apparatus capable of accepting original data that is content data before conversion and transcoded data obtained by converting the original data, and managing the original data and transcoded data in association with common content identification information. And
Using the received transcode data, a related image is generated and managed in association with the content identification information.
When a list of related images is requested, the managed related images and content identification information are output to the request source, and an original data acquisition request is accepted together with the content identification information associated with any of the related images. A content management apparatus that outputs original data associated with the received content identification information to the request source. The content management device according to claim 4,
Whether there is predetermined accompanying information that cannot be added to the original data associated with the received content identification information when the content data acquisition request is received together with the content identification information for specifying the content If there is predetermined accompanying information that cannot be added to the original data associated with the received content identification information, transcoding data corresponding to the original data, the accompanying information is A content management apparatus that acquires transcode data that can be added, adds the accompanying information to the acquired transcode data, and outputs the transcoded data to a content data acquisition request source. The content management device according to claim 4 or 5,
When a transcode data acquisition request is accepted together with the content identification information associated with any of the related images, it is determined whether there is transcode data associated with the accepted content identification information, If there is no code data, the content management apparatus outputs the original data associated with the received content identification information to the content data acquisition request source. A computer that is communicably connected to a content management apparatus that manages original data that is content data before conversion and transcoded data obtained by converting the original data in association with each other,
Means for receiving content data to be processed, transcoding the received content data as original data, and generating transcoded data;
Transmission means for associating the received original data with transcoded data and transmitting the associated data to the content management device;
Program to function as. A computer that accepts original data, which is content data before conversion, and transcoded data obtained by converting the original data, and manages the original data and the transcoded data in association with common content identification information.
Means for generating a related image using the received transcode data and managing it in association with the content identification information;
When a list of related images is requested, the managed related images and content identification information are output to the request source, and an original data acquisition request is accepted together with the content identification information associated with any of the related images. Means for outputting to the request source the original data associated with the received content identification information;
Program to function as.

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